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IMPRCVEMBNT IN LUBRIGATORS.

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Be it known that I, JULIEN LOUIS COURCIER, of Paris, in the Empire of France, have invented a new and useful Improvement in Automatic Lubricators; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this `specification, in which- Figure l is a side elevation constructed according to my invention.

Figure 2 is a plan view ofthe same.

Figure 3 is a central vertical section. y

Figure 4 is a horizontal section, taken in the line C D of ng. 3.

Figure 5 is a side elevation of the lubricator made of a different form or pattern.

Figure 6 is a plan view of the same.

Similar letters of reference indicate corresponding parts in all the figures.

This invention consists i-n anovel construction of an automatic lubricator for oiling the journals of machinery, whereby the lubricator may be manufactured at a much less cost than those heretofore devised, andV whereby a constant and continuous flow or supply ot' the oil, or other lubricating material, to the journal is secured, .and by which, furthermore, the said iow of the lubricating material may be readily'and conveniently adjusted toA any desired degree.

To enable others to understand the construction and operation of my invention, Irwill proceed to describe it with reference to the drawings.

a represents a vessel, which constitutes the reservoir in whichthe oil or other lubricating material is placed, and which may be of any suitable form. This reservoir a may be made Vof metal or porcelain when desired, but itis preferred to make it of glass, in order that the quantity of oil contained therein may be ascer tained at a glance without opening or uncovering the same. When thus constructed of glass, this reservoir may be covered by a net-Work ot' wire, as represented -in iig. 1, in order to prevent it from being broken from accidental causes. Formed upon the upper side of the reservoir a, is a tubular neck, a', through which the oil is poured into the reservoir, and which has an annular rim formed upon the outer circumference of its upper Vend, by means of-which the metallic'collar Zi is secured upon the said neck a", the lower portion of the said collar being bent closely around the said rim,.with a suitable-shaped piece of leather, or other similar packing material, placed between them to form a sufficiently tight joint between the said collar and rim. The cylindri` `cal upper end of the collar Z1 has a screw-thread formed on its enterior, upon.l which is screwed the cap c, a packing ring of leather or other like material being interposed between the top of the collar b, and the said cap, as shown at oZ in the said gure, in order to perfectly close the joint. In the bottom of the reservoir a, mme diately under the tubular neck a', is an opening, around the outer end of which is a short downwardly project ing flange, bp.' m is a metallic disk which is placed `over the inner end of the aforesaid opening, and has a. circular hole in its centre in which a female screw is formed. h represents an inverted metallic cap which :is

placed over the lower or outer end of the opening just mentioned, with its sides surrounding the iange Zz', but not quite in contact therewith. A central hole, also provided with an internal screw-thread, is. formed in the cap h, andthe upper end of a tube, g, is Vscrewed into the said hole in the cap h, and into the hole in the disk m, in such manner that the said disk m and cap 7tare closely pressed against the opposite sides'of the bottom of the reservoir a, covering both ends of the openinginvthe said bottom. The space between the disk m and the cap 7e, surroundingthe upper end of thc tube g, and also the flange b', is then lled with mastic or cement, which is impervious to oil, and thus eiectually closes the joint around the said upper end ofthe tubeg, the said end being open and communicating with the interior of the reservoir a, as shown more clearly in g. 3. Formed in the centre of the cap' o'is'a cylindrical hole,'through which is passed avertical tube, e, the tube fitting snugly in the said hole and being open at both ends, and the diameter of which is less than the internal diameter of the tube g. This tube e extends downward through the reservoir a into the tube g, as shown in the aforesaid g. 3, and may be furnished with a knob,f,' at its upper end, by means of which it is moved up and down when desired. p The lower end of the tube g is open, and is firmly ixed in the cap, or upper portion of the box or bearing of the journal which it is designed to lubrieate, the said tube being in a vertical position, with its lower. end nearly or quite in contact with the said journal.

. The lubricator being thus fixed in proper position, with reference to the journal, and a suitable quantity of oil or other liquid lubricatingsubstance being placed in the reservoir a, the operation of the invention. is as follows: The oil descends through the space or passage between the outer tube g and the inner tube e, to the lower end of the seid tube g, where it forms a short column of oil below the lower end of the tube e, and in contact with the rotating journal of the shaft, so that the oil adheres to the surface of the said journal as it revolves, and thus lubricates the same. The oil'as it thus Hows downward from the reservoir a, is replaced by au equal quantity of air which passes down through the inner or central tube e,- and out through the open lower end thereof, into the tube g, whence it bubbles up through the oil between the tubes e and g, into the reservoir a, to ll the vacuum created by the flow of oil therefrom. Inasmuch as the oil is wiped, as it were, from the open end of the tube g by the surface of the journal, it follows-that the quantity of oil adhering to the said surface is to abert'ai'n extent proportioned to the velocity of the journal, and as the downward pressure of the oil upon the `journal depends upon the'weight of thefeolumn of oil below the tube e, the iiow of oil-to the journal may also be regulated by raising or lowering the tube e, and thus increasing or diminishing the height of the said column'. By this means the oil is supplied in any desired quantity to the journal, and in proportion to the velocity thereof.

What I claim as new, and desire to secure by Letters Patent, is-

The tube e, in combination with the closed reservoir a and tube g, substantially as herein set forth, Afor the purpose specified.

COURCIER.

Witnesses:

JNO. G. NICOLAY, A. G. GILL. 

